Navigation Car dock... is there more than one kind?

I'm not completely stupid, but for the life of me I cannot figure out how my Bionic gets power through my car dock. The instructions talk about a micro-usb/audio cable, but mine just came with an audio cable.

If there's more than one kind, it would have been nice if the Verizon rep had told me there was two different kinds, but he probably didn't know either.

Am I at least partially stupid, or did I just buy the wrong one? Anyone know before I trudge all the way back to the Verizon store and look like an idiot because I couldn't figure it out?

BTW - this is the Droid Bionic Vehicle Navigation Dock. Can't find any model # on the box tho...

if there were a charger in the kit you would connect the MicroUSB cable to a port on the charger.. thus eliminating the need to plug the phone into the charger itself everytime you docked it. they basically built the charging mechinisim into the mount.

Ok, I can handle that, but I still don't see where the charger would attach to the dock... there's no socket... just an blank cut out in the plastic where it should go... unless it's some kind of induction charger setup.

Thank you for posting this. I didn't spend a ton of time trying to figure out where to connect the car charger to the car dock - I knew i was missing the obvious also. I bet *at least* another Bionic owner had the same problem